David Bryn Kessler, M.D.
Nephrology Physician · Rockville, MD
David Bryn Kessler, M.D. is a nephrology physician with a practice address in Rockville, Maryland, and NPI 1346327491, issued on Nov 1, 2006. Check the license (Maryland D11929, as entered in NPPES) on the Maryland Board of Physicians; the Medicare figures below come from public CMS files.
- Name
- David Bryn Kessler
- Credential
- M.D.
- Primary taxonomy
- Nephrology Physician 207RN0300X
- License number
- D11929 MD
Self-reported in NPPES; status is on the state search - Practice location
- 800 King Farm Blvd, Rockville, MD 20850
- Phone
- (301) 740-1030
- Enumerated
- Nov 1, 2006
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (301) 354-2995
- Entity
- Type 1 · individual
8 nearest nephrology physician records → All 337 in Maryland → Look up another NPI →
Also registered at 800 King Farm Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Catherine McGrady, MSN, CRNPAdult Health Nurse Practitioner1528396322
- Janet Mijere, APRN FNP BCFamily Nurse Practitioner1891134292
- Sarah Rivera, PHARMDPharmacist1467636530
- Ronald Shumacher, M.D.Internal Medicine Physician1447593736
- Beatrice Tekeh, DNP, PMHNP-BCPsychiatric/Mental Health Nurse Practitioner1750684890
- Debra Weltman, ODCorneal and Contact Management Optometrist1992828750
Verify David Bryn Kessler in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMaryland Board of Physicians
Search for license D11929Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Industry payments in 2024: $1,142.34
51 payments; by number, the most common kind was food and beverage; the largest payer was Abbott Laboratories. The 8,230 providers of this specialty with any payment received $3,091.37 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
David Bryn Kessler among 337 nephrology physician records in Maryland
David Bryn Kessler, M.D. is one of 337 nephrology physician records with a practice address in Maryland. 80% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 15% of them.
- NPI issued2006 · 15% of these records are older, 48% newer
- In a Medicare fileYes · 80% of these records are
- In the CMS Doctors and Clinicians fileNo · 69% of these records are
- Record last updated2007 · 56% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RN0300X and a Maryland practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Nephrology Physician providers in Maryland
There are 337 nephrology physician records in Maryland.
All 337 in Maryland → Every provider in Rockville → Nephrology Physician nationwide →
The 8 nephrology physician records with the nearest ZIP codes
- Stephen Hellman, M.D.Rockville, MD 208521942296926
- Margarita Kullick, MDRockville, MD 208521114999497
- Jeffrey Perlmutter, M.D.Rockville, MD 208521588651889
- Philip Schwartz, M.D.Rockville, MD 208521750389128
- Stephen Vaccarezza, M.D.Rockville, MD 208521861488314
- Oney Zuniga, MDRockville, MD 208521689658627
- Mario Belledonne, M.D.Potomac, MD 208541033129457
- Vikram Doraiswamy, M.D.Rockville, MD 208541427468487
Common questions
What is David Bryn Kessler, M.D.'s NPI number?
David Bryn Kessler, M.D.'s National Provider Identifier (NPI) is 1346327491, issued on Nov 1, 2006. An NPI identifies a provider in billing; it is not a license.
Where is David Bryn Kessler, M.D. located?
The NPPES record lists a practice address at 800 King Farm Blvd, Rockville, MD, 20850. Phone: (301) 740-1030. Providers update this record themselves, so call before visiting.
How can I verify David Bryn Kessler, M.D.'s license?
NPPES lists Maryland license number D11929, as entered by the provider. Search the Maryland Board of Physicians at https://www.mbp.state.md.us/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.